System and method for cyclic utilization of water in production process of electrical filling material namely aluminium oxide

A production process, alumina technology, applied in the direction of chemical instruments and methods, water pollutants, multi-stage water treatment, etc., can solve the problems of unfavorable removal of wastewater sediment, environmental pollution, etc., and achieve good social and environmental benefits, equipment The effect of simple facilities and low risk
CN108640324AInactive Publication Date: 2018-10-12TAIAN SHENG YUAN POWDER
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
TAIAN SHENG YUAN POWDER
Publication Date
2018-10-12
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a system for cyclic utilization of water in the production process of an electrical filling material namely aluminium oxide. The system comprises a chemical addition tank, a wastewater sedimentation pool, a circulation water pool and a water use process, wherein the chemical addition tank is located above a pipeline entering the wastewater sedimentation pool for fully mixing chemicals with acidic wastewater in advance and avoiding stirring in the wastewater sedimentation pool; the wastewater sedimentation pool is arranged into a five-stage sedimentation pool; the heights of overflow openings of the five-stage sedimentation pool are successively reduced from front to back for fully separating fine powder and suspended matters from the water; the wastewater sedimentation pool and the circulation water pool are directly connected through a wastewater pipeline; the circulation water pool is connected with the water use process; and a water filtering tank is arrangedbetween the circulation water pool and the water use process for further removing the suspended matters in recycled water. The system provided by the invention can achieve a recycled water reutilization rate of 90% or above, so great economic benefits can be obtained, and good social benefits and environmental benefits can be brought at the same time.
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Description

technical field

[0001] The invention relates to the technical field of water recycling in the industrial production process, in particular to a water recycling system and method in the production process of filler alumina. Background technique

[0002] At present, with the development of my country's industry, the consumption of fresh water has increased rapidly, and many areas are facing a serious water crisis. In urban water, industrial water accounts for about 60-80% of the total water consumption. However, relevant data show that the average reuse rate of industrial water in my country is 40-50%.

[0003] my country's urban industry consumes 340 cubic meters of water per 10,000 yuan of output value, which is 10 to 20 times that of developed countries. The high water consumption and low reuse rate are prominent problems in the utilization of water resources in my country's industrial systems. Therefore, saving industrial water and maximizing the use of limited water sour...

Claims

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